Copyright 2015©
CLUE
TMAPPENDIX
This document is a supplement to the manuscript entitled “Development of the Contact Lens User Experience: CLUE Scales”. It provides item text and factor loadings for a large subset of the available CLUE items, in tables separated by domain. All items and scoring parameters are copywritten by Johnson & Johnson Vision Care, Inc. For information about CLUE for use in your practice or research, please contact [email protected].
Table A1. Item text and factor loadings for select CLUE Comfort items.
Item Text Factor Loading
The discomfort of the lenses caused me to be distracted from a task 0.89
These lenses were comfortable at the end of the day. 0.88
I had to blink more often because these lenses were uncomfortable 0.87
These lenses felt smooth in my eyes 0.79
These contact lenses were very comfortable. 0.79
These lenses were too stiff in my eyes 0.77
My eyes adjusted quickly to these lenses each day 0.72
These lenses were comfortable instantly after inserting them 0.70
On a typical day, I was aware of these lenses 0.70
I was aware of these lenses when I blinked 0.67
These lenses were comfortable in heated or air conditioned environments 0.64 I have used artificial tears to help these lenses feel more comfortable during the evening 0.61
I became more aware of these lenses after watching TV 0.60
These lenses were comfortable when I performed sports activities 0.56 I could have easily forgotten to take these lenses out at night 0.53
I have experienced red eyes. 0.52
My eyes felt irritated when I woke in the morning 0.48
These lenses were comfortable in smoky environments 0.45
I had to blink more when I was outside in the wind 0.40
Bright light was bothersome to my eyes 0.36
Copyright 2015©
CLUE
TMTable A2. Item text and factor loadings for select CLUE Handling and Packaging items.
Item Text Factor Loading
Handling
Caring for these lenses was very straight forward 0.87
These lenses left my finger and inserted easily into my eye. 0.83
These lenses were too flimsy 0.82
The number of attempts to remove these lenses from my eyes was excessive 0.78 When preparing for insertion, these lenses stood up on my finger. 0.71 It was difficult to grasp these lenses when trying to remove them from my eyes. 0.68 These lenses felt as though they were stuck to my eyes when I tried to remove them 0.63 It was very easy to determine if these lenses were inside out just by looking 0.52 It was easy to tell if these lenses were inside out once they were inserted 0.41 Every day, it took more than one attempt to insert these lenses 0.30 Packaging
The packaging of these contact lenses was easy to open 0.84
It was easy to remove these lenses from the packaging 0.83
The foil on a new set of lenses peeled off easily 0.77
I liked the container these lenses arrived in 0.75
It was easy to open a new packet of lenses 0.74
The amount of packing used for these lenses was excessive 0.66
There was enough solution in the blister packs that these lenses arrived in 0.62
I had to chase these lenses around the lens container 0.59
These lenses were folded in the lens container 0.51
I tore the foil of the next lens as I separated the lens from the strip 0.30
Copyright 2015©
CLUE
TMTable A3. Item text and factor loadings for select CLUE Vision items.
Item Text Factor Loading
I was able to very clearly see at the movies/cinema 0.89
I was able to easily refocus my vision from a distant object to up close. 0.89
I was extremely satisfied with my vision. 0.85
My vision was blurry. 0.83
My vision was very blurry at the end of the day 0.80
I was very satisfied with my near vision when I first put these lenses in my eyes 0.79
I noticed a double image around near objects 0.79
I felt the need to squint when looking at distant objects 0.78
I was satisfied with the quality of my vision in dim lighting 0.75
When driving at night, car headlights often appeared doubled or smeared 0.73
I was able to clearly read small print without straining 0.71
I was able to extremely clearly notice objects off to the side 0.66
I noticed a glare effect (e.g. starburst around a headlight) 0.66
I had to rub my eyes to clear my vision 0.64
When driving at night, I often could not read street signs as soon as I wanted to 0.61
I noticed a halo effect (e.g. rings around lights). 0.61
I would rather watch TV wearing my glasses than these lenses 0.57
I preferred to use these lenses instead of my glasses when I drove at night 0.57 Wearing the lenses improved my ability to take part in active sports or other outdoor activities 0.39
My eyes were clear when I woke in the morning 0.36
